Condenser circulating system



Sept 4, 1923. 1,466,703

' A. D DVV CONDENSER CIRCULATING SYSTEM Filed Nov. 6, 1920 Patented Sept. 4, 1923.

UNITED PATENT omen ALEX new, "on-nnrtao'ir,,ivrronrenn nssrenon To woarnrneron rum Am) 'onr nnnY'oonror-n'rron, on NEW rank, n. Y., A oonronnr'ron or VIRGINIA.

oonabnnsnn drawn-ta e SYSTEM.

Applicatio filed November To-alZ w'hom zt mar concern: I

Be It known that I, ALEX DOW, it0li3lZQl1 of "the United States, residing at Detroit, 7

county of Wayne, and :St'ate of Michigan, have invented certain new and useful'lim provements in Condenser circulating' Systems, fully described and represented in the following specification and'the accompanying drawings, forming a part of the same.

This invention relates to improvements in circulating water systems for multiple circulation surface condensers.

It is the especial object of the invention to provide an improvement in the circulating water systems of multiple circulation surface condensers constructed and arranged to obtain a balanced column effect uponthe circulating water passing through the condenser, in which a circulating pump or pumps and two or more ascending columns of water and a similar number of descending columns are employed, the weight of the descending columns acting to reduce the work of the pump or pumps.

In condenser circulating systems of this class, considerable difliculty hasbeen experienced due to breaking of the descending columns of circulating water, caused by different siphon effect resulting from unequal pump action and therefore unequal quantities of water passing through the different circulating systems, or from air leaking into one of the water lines to suchan extent as to interfere with. the siphon eifect on one or the other of the drop legs, so that the pump supplying such drop leg works against a greater head than the other pump. Such leakage air collects in the elbows or tops of the drop legs, so that the level of the water in that leg is lower than in the other, and thus the head on that leg is reduced and the head on the pump correspondingly increased. As the pump head is thus increased, less water will be forced through such drop leg by the pump, thus interfering with the ef ficient and uniform action of the condenser system. The present invention overcomes this difficulty, in that the water in the drop leg receiving the most water acts to withdraw the air from the elbow of the other drop leg and restore the proper action, so that both pumps will operate under the same head and with the same siphon effect. In case only one circulating pump is used, the flow in one drop leg will aid the flow in the other e, 1920. Serial no. 422,139.

drop leg when, due to: any of the abovecauses, such flow 'is below normal.

'For' a full understanding of the invention, adetailed description of a constructron embodylng one .preferredform thereof,

will now be given-n1 connection with the accompanying drawing forming-n part of this Specification, and the features forming sents the condenser, 2, 2 circulating water inlet pipes leading from a pump or pumps (not shown), and 3, 3 are the usual barometric drop legs leading to the ordinary hot well. As shown in Fig. 2, the condenser is divided into four longitudinal compartments by the partitions 6, 7, so that the cooling water entering the water head through 'inlet2 traversesthe full length or the compartment with which such inlet is connected and returns through the compartment directly above, passing out through outlet 3 The same circulation occurs on the other side of the condenser, the water entering through inlet'2 and passing out through outlet 3'.

There isthus provided, in the present showing, a condenser having two double pass circulating systems.

In multiple circulation surface condensers working on the balanced column principle, the difliculties above stated, due to the presence of'air pockets and unequal siphon effect'in the legs 3, 3, is entirely overcomeby theprovision of cross-over connections a, 4' extending from the elbow or top of each drop leg over and down into the opposite drop leg. It will be seen that the'leg 3 is tapped at its elbow or uppermost point by the pipe 4, which latter is crossed over and tapped into the elbow of leg 3, the outlet ,5 of such cross-over connection being situated at a point sufficiently low with respect to its inlet to obtain the full benefit of the ejecting action of the descending column in drawing off any airtending to accumulate in the elbow or upper portion of leg 3. The crossover connection from the top of leg 3 to leg 3 is exactly the same as theconnection from leg 3" to leg 3, just described.

It will be obvious that my invention is applicable to the circulating water systems of condensers of various types, and may be ap plied in connection with the circulating systems 01" a plurality of single circulation condensers, and to any other liquid circulating systems where the results aimed at are necessary or desirable.

hat I claim is:

1. The combination with liquid circulating systems having independent drop leg outlets, of cross-over connections between each outlet and the other drop leg below the level of the liquid therein.

2. The combination with the independent outlets of condenser circulating systems of pressure equalizing and air removing connections from each outlet above the liquid level to another outlet below the liquid level.

3. The combination with a condenser having multiple circulation with independent outlets, of pressure equalizing and air removing connections from each drop leg above the liquid level to another drop leg below the level of the liquid.

l. The combination with condenser circulating drop legs 3, 3, of cross-over connections 4-, 4 from one drop leg above the liquid to the other drop leg below the liquid, substantially as and for the purpose specified.

In testimony whereof, I have hereunto set my hand.

ALEX DOXV. 

